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Title: Study of Pinching Capillary Discharge for Nitrogen H-like Recombination Laser

Abstract

A computer model of EUV nitrogen laser pumped by pinching capillary discharge is presented. The model consists of magneto-hydrodynamics plasma description and subsequent ion kinetic evaluation. Quick changes of electron temperature during the pinch decay lead to ionisation and excitation non-equilibrium and result in inversion population on Balmer alpha transition. Validity of our model was proved via comparison of measured and evaluated spectra of our device with 15.5 kA peak current. High gain lasing system is predicted for 2 mm diam. capillary filled by 0.2 kPa nitrogen if 80 kA peak current and 30 ns pulse duration are taken into account.

Authors:
 [1]; ; ; ;  [2]
  1. Institute of Plasma Physics AS CR, 182 00 Prague 8 (Czech Republic)
  2. Czech Technical University in Prague, 115 19 Prague 1 (Czech Republic)
Publication Date:
OSTI Identifier:
20729264
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 808; Journal Issue: 1; Conference: 6. international conference on dense Z-pinches, Oxford (United Kingdom), 25-28 Jul 2005; Other Information: DOI: 10.1063/1.2159367; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CAPILLARIES; COMPARATIVE EVALUATIONS; ELECTRIC CURRENTS; ELECTRON TEMPERATURE; EMISSION SPECTRA; EXCITATION; GAIN; IONIZATION; IONS; LONGITUDINAL PINCH; MAGNETOHYDRODYNAMICS; NITROGEN; PLASMA; PLASMA SIMULATION; PULSES; RECOMBINATION; X-RAY LASERS

Citation Formats

Vrba, Pavel, Vrbova, Miroslava, Jancarek, Alexandr, Pina, Ladislav, and Havlikova, Radka. Study of Pinching Capillary Discharge for Nitrogen H-like Recombination Laser. United States: N. p., 2006. Web. doi:10.1063/1.2159367.
Vrba, Pavel, Vrbova, Miroslava, Jancarek, Alexandr, Pina, Ladislav, & Havlikova, Radka. Study of Pinching Capillary Discharge for Nitrogen H-like Recombination Laser. United States. doi:10.1063/1.2159367.
Vrba, Pavel, Vrbova, Miroslava, Jancarek, Alexandr, Pina, Ladislav, and Havlikova, Radka. Thu . "Study of Pinching Capillary Discharge for Nitrogen H-like Recombination Laser". United States. doi:10.1063/1.2159367.
@article{osti_20729264,
title = {Study of Pinching Capillary Discharge for Nitrogen H-like Recombination Laser},
author = {Vrba, Pavel and Vrbova, Miroslava and Jancarek, Alexandr and Pina, Ladislav and Havlikova, Radka},
abstractNote = {A computer model of EUV nitrogen laser pumped by pinching capillary discharge is presented. The model consists of magneto-hydrodynamics plasma description and subsequent ion kinetic evaluation. Quick changes of electron temperature during the pinch decay lead to ionisation and excitation non-equilibrium and result in inversion population on Balmer alpha transition. Validity of our model was proved via comparison of measured and evaluated spectra of our device with 15.5 kA peak current. High gain lasing system is predicted for 2 mm diam. capillary filled by 0.2 kPa nitrogen if 80 kA peak current and 30 ns pulse duration are taken into account.},
doi = {10.1063/1.2159367},
journal = {AIP Conference Proceedings},
number = 1,
volume = 808,
place = {United States},
year = {Thu Jan 05 00:00:00 EST 2006},
month = {Thu Jan 05 00:00:00 EST 2006}
}